Roller for casters.



No. 686,204. Patented Nov. 5, l90l.

' A. B. CLARK. ROLLER FOB CASTERS.

(Application filed Mar. 29, 1900.)

(No Model.)

THE "cams PETERS 00 PNQTD-LIYHQ. wnsmnsvcm AMBROSE l3. CLARK, OF MERIDEN, CONNECTICUT, ASSIGNOR TO FOSTER,-

MERRIAM (it COMPANY, OF MERIDEN, CONNECTICUT,

OF CONNECTICUT.

A CORPORATION ROLLER FOR CAST'ERS.

srncrrrearron forming part of Letters Patent No. 686,204, dated November 5, 1901.

Application filed March 29, 1900. Serial No. 10,608. (No model.)

To all whom it may concern:

Be it known that I, AMBROSE B. CLARK, a citizen of the United States, residing at Meriden, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Rollers for Casters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention relates to the roller for casters herein shown and described.

Reference is had to the accompanying drawings, forming a part of this specification, in explaining the same, in Which Figure 1 shows the four separate parts of my roller before theyare assembled, Fig. 2 being a perspective view of the roller itself and Fig. 3 a diametrical section.

The roller, as shown, consists of two approximately cup-shaped pieces A A, which form a shell within which is a reinforce B. A tubular rivet C forms the axis of the roller, these parts being assembled, as will be understood from Fig. 3, thereinforce being set within one of the shells, the other shell being placed over it, so as to inclose it completely, the edges of the two shells being brought together, as at a, and the tubular rivet C being then passed through the central openings in the two pieces A A and riveted into place, so as to form not only a rivet for the purpose of keeping the roller solid, but also a bearing through which a pin may be passed to attach the roller to the frame. The cup shaped pieces A A form a covering or shell for the reinforce, holding it in place and centering it with relation to the axis of the roller.

The reinforce B is preferably made in the form of a piece of slit tubing Z2, indicating the slit, which is parallel with the axis of the reinforce and which, in fact, enables the reinforce to be compressed slightly on putting it into place, the reinforce being preferably made slightly larger in diameter than the interior diameter of the pieces A A, so that it may be sprung into place, and thus form a tight and solid support for the shells. The tubular rivet may also be made in the form of a piece of slit tubing of proper diameter to enter the openings in the shells and of proper length to be riveted overthe edge of such openings.

It will be seen that the reinforce will prac tically take the weight off from the cylin-' drical surface'of the shell, and thus enable the shell to be made of comparatively light process of manufacture and until such time as the rivet is set therein. The advantage of this will be apparent. The reinforce is not only held from lateral movementby the side walls, but also is held from collapsing by the bending in of the side walls, which, however, are again bent out, as will be seen from Fig. 3, so that the points of engagement with the rivet are at a considerable distance apart, and a rivet may be used which is as long as or longer than the width of the periphery of the caster-roller.

It will be noticed that the structure pro vides a hub having a hollow'bearing which is considerably Wider than the tread and a tread which is reinforced by an integral 0 lindrical sleeve of practically its width, which is made from a piece of sheet metal bent to shape, so that its ends abut or verynearly abut, and which is held in the hollow structure against the inner surface of the tread by inward folds of the sides of the roll. This provides the roll with a long bearing at its center upon its holding pin or shaft, which is a desirable construction, while at the same time it has a sufficient floor-base. It will be noticed that the sleeve which makes the bearing and the side piece are combined by means of countersunk recesses in the sides in which the ends of the sleeve are upset, so that they do not extend beyond the outer surfaces of the sides,

What I claim as my invention is The improved, hollow, sheet-metal, casterroller herein described, the same comprising and bound under the abutting treads to bear against their inner surfaces by the said inward bends of the sides, and by a sleeve which forms a tubular central bearing and the ends of which are upset in the countersunk cups in the faces of the sides.

AMBROSE B. CLARK.

Witnesses:

CHARLES N. FOSTER, JAMES R. SUTLIFF. 

